BMX UNION

The latest BMX Videos, Products and News!

Kink BMX Contender II

BMX Spoke Calculator

Need help figuring out what size spokes you need for your BMX wheels? Here’s a BMX Spoke Calculator that should be able to help you figure out what size spokes you need for your BMX wheels. Note this is used for freestyle BMX hubs and rims. We need information supplied for hub dimensions and rim ERD (effective rim diameter) to add it to our list. If we do not have that information, we cannot add it. Also, the calculator goes off the information supplied, so we cannot 100% guarantee that is correct if a brand has changed the design or we have been given incorrect specs.


Our friends at Manyfest BMX over in Poland have hooked us up with a BMX tool that we think will help out a ton of BMX riders. There’s nothing worse than breaking a bunch of spokes or planning to build up a new wheel set and not knowing what size spokes you need. Luckily, this super useful BMX Spoke Calculator is available to help you figure out just what spoke size you need! This already has a ton of different hubs and rims, but as always, there are new hubs and rims becoming available all the time. This calculator offers spoke sizes for 3-cross and 4-cross spoke patterns.

Need help building up your wheel? Here’s a video show you How To Build a 36-Hole BMX Wheel that should help.

Here’s How To True A BMX Wheel as well.

If you do not see your hub or rim listed, please let us know in the comments below and we’ll see if we can get the information needed to add it to our list. Unfortunately hubs are pretty hard to get information on for some reason since we generally need the measurements direct from the brand.

BMX Brands – If we don’t have your hubs or rims listed, please let us know! We want this to be the most complete and up to date BMX Spoke Calculator.

Are you stoked on this tool? Please give it a Share on Facebook, Twitter, etc. to help spread the word! We appreciate it.

Once again, big shout out to Manyfest BMX for this amazing BMX Spoke Calculator!


Note: We are not responsible for incorrect spoke calculations. The calculator uses information that was either supplied to us by the brand or information found online through reputable BMX dealers, but cannot be guaranteed due to specs or design changes, incorrect measurements supplied or other aspects outside of our control.

RAD 35th Anniversary Poster

Comments

  5. Cody says

    Shadow Definitive Hubs, are there comparibles with other Shadow hubs? getting ready to lace up a set to Odyssey Aerospace rims F&R

    Reply

  10. Brent Eaton says

    Trying to lace up a dartmoor 26 fortress rim to a shadow definitive hub for my capital. I’d you guys could add these would be awesome 🍻🤟

    Reply

  11. Rob says

    I don’t see Super leon hubs (front and rear) or the AERO G6000 rim 26. Going to be my first rim build. Thanks so much!!

    Reply

  12. Kyle Masterman says

    I don’t see the Eclat E440 rim, could you add please?

    I plan to lace this to the Free Night Coaster which I see has been added. Thanks for putting this together!

    Reply

  17. Darrel White says

    Team,

    I appreciate the work done on this site, very helpful as you know. The spoke lengths I’m in need of are Eastern Ezra Freecoaster to 20” Rant Squad rim. Should be two different lengths as you know drive side/non-drive.

    Thanks,
    Darrel

    Reply

  24. Marcus Aasvangen says

    Hey bmxunion.com

    You guys need to Get the new BSD revolution GUB!
    I really need help to Get the right spokes for this!

    Mvh: Marcus

    Reply

  25. Adam bellamy says

    Hi there in a spot of bother I have a stranger ballast freecoaster and a alienation black sheep rim erd 395mm hub dimensions are as follows
    Non drive side 47mm flange
    Drive side 58mm flange can’t seem to find a rim /hub combo on a spoke calculator??? What size spokes do I need!! Thankyou

    Reply

  26. Rishi says

    Hello .

    I wanna new wheel but you haven’t got the TOTAL BMX SPITFIRE rim here , can you add it here ? And if i use other calculators I can’t find all parameters for COLONY WASP HUBS and here I can’t choose the TOTAL rim and other calculators .

    Thanks . -Rishi

    Reply

  27. Karl says

    I have the Profile racing mini cassette rear hub And plan to lace it to an old school Alex Supra G rim with rim height of 20mm can somebody tell me what length spokes I need for drive side and non-drive side ?
    Thank you much appreciated !

    Reply

    • Jared Rablin says

      I’ve got a Salt Everest wheel and looking at a BSD Revolution Hub, no clue what size spokes I’d need though.

      Reply

      • Kurt says

        Just sent BSD a message to get the measurements on the hub. I’ll see if I can find the ERD on the Salt Everest rim. I don’t usually get a response when I ask for this info from WTP, Eclat or Salt for some reason since I’ve tried a few times.

        Reply

  28. Beezee says

    I had a KHE Astern freecoaster hub, laced to a Proper rim and ordered the spoke length I got from the calculator, to lace 3 crossed to a cinema 777 rim. When I got the spokes and trued the wheel, spoke length was to big and surprisingly the spokes that were there with the Proper rim ended up being the right ones. Is there something wrong with the calculator?

    Reply

    • Kurt says

      Sorry about that. It’s possible the hub or rim information changed. We use the information supplied to us by the brand or what is listed online if the brand isn’t responsive to requests (Oddly it’s like pulling teeth trying to get hub specs and rim ERD info). A lot of the hubs and rims listed were supplied by Manyfest BMX as well before we uploaded this, so it’s possible the info changed since then. I’ll see what I can figure out.

      Reply

  31. Leon says

    I have alienation 440 rim and I am getting tall order drone cassete hub and I dont know which size spokes I need, every time i check here the spoke lenght changes, could you help me?

    Reply

  32. Rob says

    I think Flybikes has published the wrong flange distances on their Magneto specs. Don’t see how they could be 29DS and 19NDS. I’ve got a pair on order so am curious what the deal is…

    Reply

    • Kurt says

      Hey Rob,
      I’m double checking but I got the numbers from David, the owner of Flybikes and designer of the hubs. I think it’s because the driver is a little different and sticks out further than a regular driver would, which decreases the offset of the flange.

      Reply

  33. Randy Callahan says

    Alex g303’s. They are older i think, but they are the rims id like to put new hubs on so hope some calculator has them so i can reuse them!

    Thanks

    Reply

  34. Frankie M says

    Hi just came across your site and found one of my rims data. Eastern nitrous, however I also have some old school rims 1994 CMC which I can’t find any info for. As well as a pair of nos Japan Assess hubs (high flange) and another pair of Valisium hubs (again high flange). I am currently in the process of restoring two 1985 GT bicycles and any info on either the rims or hubs would be appreciated.

    Reply

  38. Cole Adams says

    Im lacing Cinema fx freecoaster to a Salt plus Summit Rim
    Erd is 388.8 mm and im not sure what size spoke to get, help?

    Reply

  40. M says

    I have an Eclat cortex hub I would like to lace to an Odyssey Hazard lite rim. What length spokes do i need? Thanks!

    Reply

  41. raphael dubacq says

    Hello i have the foundation hub freecoaster and i have the gs sport birdcage
    Thanks for your help

    Reply

  44. Steve says

    Hi. I’m looking at fitting a colony clone freecoaster hub to a Alex box rim VP 18 16×1.75 36h. Can you tell me what size spikes to use?

    Reply

  45. matt says

    Fly Bikes Classic REAR rim please (the old one, not Lunar) please
    Can’t find it anywhere and got 2 sets of these rims 🙁
    thank you

    Reply

  48. Omar Sulaiman says

    Hey I’ve got a bsd swerve cassette hub for the rear and an eclat blind front hub. the rims im using are alienation tcs vandal rims. what size spokes do i need?

    Reply

  50. Eman says

    Any chance of getting the new Eclat Seismic hubs added? The front is 36h, PCD: 38mm, Flange Offset: 26.75mm. But I can’t find any info on the rear. I’d love to lace up a new set at home for more experience but I’m no math wizard to figure out spoke lengths.

    Reply

    • Eman says

      Just heard back from Elcat about the Seismic cassette:
      PCD: 45mm NDS
      PCD: 51.5 DS
      Flange (outside): 55.89mm

      Maybe this helps? I only sort of understand what I’m looking at here.

      Reply

      • Kurt says

        Hey Eman,

        I’ll email them and get some other details. Essentially I need the flange diameters and the offset (Flange to center of hub) on both sides and the spoke hole size. It looks like they gave you flange diameters and the length from flange to flange.

        Reply

  51. Colin says

    It would be helpful if primo’s new remix v3 was on here, also if you could look into alien nation’s black sheep rim, here it says the ERD is 190, but some other sites say 195, though I’m not sure how big of a difference that is, I feel like it should be pointed out

    Reply

  59. Monta says

    What about 48 holes ? I’d like to calculate Odyssey V3 casette hub and Odyssey Hazard Lite (both 48 holes version). Thanks !

    Reply

  60. Tony Hawkins says

    So if my non-drive side is 188 mm but my drive side is 186 mm do I order 18 of each size or could I go in the middle and get 36 187 mm or just get all 188 mm or 186 mm

    Reply

  61. Jacob says

    I have khe greyhound 14mm axle not female and shadow Corvus. Didn’t see the khe greyhound on there.

    Reply

  63. Albert says

    I have an old primopro small flange front hub, the one that matched the very first primopro cassette the one before the mix v1, that is laced to an odyssey hazard lite rim. Need to know exactly what length the spokes are thanks!

    Reply

  67. mattybmx says

    shadow symbol front and rear hubs and shadow optimized freecoaster hubs would be nice to add to your list. THANKS!

    Reply

  68. Jake says

    Cinema c38 size is WRONG. Ordered spokes too long as a result. It’s listed as erd 396 but cinema site lists it as 391mm.

    Reply

  70. Michael says

    For the demolition rolls 2
    Flange diameter.. Driveside-51.5
    Non drive side 45mm
    Can u plz post. I have the demolition rolls 2 laceing to a primo 7005. Thanks theres the info the the slot missing thanks

    Reply

    • Kurt says

      Hey Scott! Thank you! I have all three corrected. Those were a few that were already on the calculator when I was given it, so I assumed they were correct. That was my bad. I appreciate you letting me know!

      Reply

  82. Kurtis Kunz says

    Hello,
    Wondering if the spoke length for the Madera Pilot front hub on the list is for the V2 or if the one listed and the V2 are the same length.
    Thanks!
    ~Kurtis.

    Reply

  85. Bryn says

    Odyssey quartet hubs, front and rear. Bsd backstreet rear cassette.
    Eastern hoops both throttle and nitrous.
    Thanks.

    Reply

  86. Rueben says

    Hey, what’s the measurement for a FlyBikes Trebol Bueno Cassette Wheel, with the FlyBikes pyramid 2 Rim? You’ve already got the pyramids 2 Rim, but not the hub. Thanks so much!!

    Reply

  87. Rueben says

    Hey, I was just wondering, what’s
    The measurement for the FlyBikes Trebol Bueno Cassette hub, and the Fly Piramide 2 Rim.. you have the Fly Piramide 2 Rim, but not the Fly Trebol Bueno Cassette, is this because its recent? Just wondering if you can add it in, thanks!!’

    Reply

  88. Ike says

    Im goin to the old skool cuz i still ride 48 spokes LOL Primo SOB front hub and odyssey ribcage rim?
    Got more but cant think of em now. Ill b in touch!

    Reply

  93. Bodhi says

    The United Supreme Female Front hub is not on here same with the United Supreme Male Cassette hub may you please fix that.

    Reply

  95. Detonate says

    Can you please add the bombshell line of rims, to the calculator? I have the bombshell sl pro plus, which is a 36 hole 24″x1.75″ rim?
    Thank you!!

    Reply

  96. Dong says

    Some different measurement from profileracing website. For profile mini rear hub: drive flange diameter: 54. Non-drive flange diameter:43. Drive flange offset:28. Non-drive flange offset:33. Spoke hole diameter:2.5. Please update new measurements for them.

    Reply

  97. Korey says

    Can you add the Sunday Cyclone Freecoaster to the list or let me know what size spokes I would need to fit an Odyssey Hazard Lite? I haven’t seen it on any spoke websites and I’m wondering if it’s because the hub is recent.

    Reply

    • Kurt says

      Hey Korey, I have added the Sunday Cyclone freecoaster hub, along with the Odyssey Clutch V1 and V2 since all three use pretty much identical hub shells (similar internals, too). Hope this helps!

      Reply

    • Kurt says

      We don’t get too into the Race world, but luckily Box is good about listing all their specs on their website. I’ve added the Box Hollow Hubs (front and rear) and Focus rims for you.

      Reply

  99. CHRIS WILCZEK says

    SPOKE LENGTH FOR BULLSEYE 36H HUBS TO ARAYA 1.75 20” RIMS. THANK YOU. POLSKA!!!!! TO NASA!!

    Reply

  101. Luke says

    it’s very nice you have provided this page but totally sucks since there’s no option to solve or update entered selection, rendering it completelyuseless.

    Reply

    • Kurt says

      Hey Luke, we’re working on updating the list. What hub and rim are you looking for? Once we have what people need, we can find the numbers we need for it.

      Reply

  102. michael courteau says

    Hello i have a Hub Eastern Rear 9t is white hub no idea of the model !!!

    i have a alienation 440 what size spokes do i need ??

    Reply

    • Kurt says

      We would need to know the model of the hub since all vary so much. If you can figure that out, we can get the flange diameters that we would use to calculate it.

      Reply

  107. michael courteau says

    TotalBmx all hub NOT in the list 🙂 thanks you

    and my rims are Alienanion 440 – or Alienation runaway – is on the list for this one is Corect 🙂

    i lace it to a

    REAR HUB = i know is 182mm drive side to a 184mm non drive side spoke 3 cross ==

    But Front HUB ??? iam not sure is 186mm for 3 cross on the two side

    Reply

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.